What is the reason why the temperature of the box type atmosphere furnace cannot rise?

The temperature of the box type atmosphere furnace cannot rise due to various reasons. The following are some possible reasons and corresponding solutions:
1. Heating element issue
Heating element damage: The heating element is the core component of the box type atmosphere furnace. If the heating element is damaged or aged, it will result in insufficient heating power, thereby affecting the temperature rise.
Solution: Check the working status of the heating element. If there is any damage or aging, it should be replaced in a timely manner.
Heating element connection issue: The connection circuit of the heating element may be loose or have poor contact, resulting in poor current transmission and affecting the heating effect.
Solution: Check the connection circuit of the heating element to ensure a secure connection and good contact.
2. Temperature control system issue
Temperature sensor malfunction: The temperature sensor is responsible for detecting the temperature inside the furnace and transmitting the signal to the controller. If the temperature sensor malfunctions, it will not be able to provide accurate temperature feedback, resulting in the controller being unable to adjust the heating power correctly.
Solution: Check the operating status of the temperature sensor. If any faults are found, they should be repaired or replaced in a timely manner.
Improper setting of PID control parameters: PID control is a commonly used temperature control method for box type atmosphere furnaces. If the PID parameters are set improperly, it will affect the accuracy and stability of temperature regulation.
Solution: Adjust PID parameters according to actual production or experimental needs to optimize furnace temperature control.
Controller failure: The controller is the core of the entire temperature control system. If the controller fails, it will result in the inability to correctly control the heating power, thereby affecting the temperature rise.
Solution: Check the operating status of the controller, and if there is a malfunction, repair or replace it in a timely manner.
3. Wind circulation system issues
Poor air circulation: Box type atmosphere furnaces are usually equipped with an air circulation system to ensure uniform temperature inside the furnace. If the air circulation is not smooth, it will cause uneven temperature distribution inside the furnace, affecting the temperature rise.
Solution: Check the operation status of the air circulation system, including whether the regulating baffle of the air circulation is open normally and whether the motor of the air circulation is running normally. If there are any abnormalities, they should be adjusted or repaired in a timely manner.
Excessive placement of test samples: If too many test samples are placed, it will hinder the normal operation of the air circulation system, resulting in uneven temperature rise inside the furnace.
Solution: Reasonably arrange the quantity and location of test samples to ensure the smooth operation of the air circulation system.
4. Other factors
Unstable power supply voltage: Unstable power supply voltage will affect the heating power of the heating element, thereby affecting the temperature rise.
Solution: Check if the power supply voltage is stable. If there is any fluctuation, take timely measures to stabilize the voltage.
Poor sealing of furnace body: Poor sealing of furnace body will lead to heat dissipation and affect temperature rise.
Solution: Check if the sealing components of the furnace body are worn or aged, and if necessary, replace or repair them in a timely manner.
In summary, the reason why the temperature of the box type atmosphere furnace cannot rise may involve multiple aspects such as heating elements, temperature control systems, and air circulation systems. When troubleshooting and resolving faults, possible causes should be investigated one by one according to the actual situation, and corresponding solutions should be taken. If the problem is complex or difficult to solve, it is recommended to contact the equipment manufacturer or professional maintenance personnel for handling.